class BlinkyTape
Constants
- VERSION
Attributes
led_count[RW]
port[RW]
serial[RW]
Public Class Methods
new(port)
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# File lib/BlinkyTape.rb, line 10 def initialize(port) @port = port @led_count = 60 connect show end
Public Instance Methods
close()
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# File lib/BlinkyTape.rb, line 31 def close @serial.close end
connect()
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# File lib/BlinkyTape.rb, line 17 def connect # @serial = SerialPort.new(@port, 115200, 8, 1, SerialPort::NONE) @serial = SerialPort.new(@port, 115200) raise "Cannot connect to #{@port}" if @serial.nil? end
display_color(r=255, g=255, b=255)
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# File lib/BlinkyTape.rb, line 51 def display_color(r=255, g=255, b=255) 0.upto(@led_count) do send_pixel r,g,b end show end
reset()
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# File lib/BlinkyTape.rb, line 24 def reset @serial.close @serial = SerialPort.new(@port, 1200) sleep 1 connect end
send_pixel(r,g,b)
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# File lib/BlinkyTape.rb, line 40 def send_pixel(r,g,b) sleep 0.001 data = "" r = 254 if r == 255 g = 254 if g == 255 b = 254 if b == 255 data = r.chr + g.chr + b.chr @serial.write data @serial.flush end
show()
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# File lib/BlinkyTape.rb, line 35 def show @serial.write 255.chr @serial.flush end